Staple fiber durable nonwoven fabrics
AssigneeNorth Carolina State University
InventorsNagendra Anantharamaiah, Behnam Pourdeyhimi
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AssigneeNorth Carolina State University
InventorsNagendra Anantharamaiah, Behnam Pourdeyhimi
Estimating the term…
The invention provides durable nonwoven fabrics comprising staple fibers. Methods of preparing durable nonwoven fabrics based on staple fibers are also provided. The methods can include the steps of at least one of needle punching and hydroentangling. The durable nonwoven fabric can be subjected to additional bonding techniques, such as resin bonding and/or thermal bonding. The durable nonwoven fabrics of the invention provide improved durability over conventional nonwoven fabrics. Further advantages of the inventive nonwoven fabrics include maintaining the smooth surface qualities of the fabric and desirable feel of the fabric even with the enhanced durability. The inventive nonwoven fabrics can also be subjected to additional post-processing techniques that conventional nonwoven fabrics would otherwise be unable to withstand. Further, inks and/or dyes can more readily become adhered to the smooth nature of the surfaces of the inventive durable nonwoven fabrics.
A durable nonwoven fabric comprising a web of nonwoven staple fibers having a first fiber component selected from the group consisting of a nylon fiber, a PET fiber, a PBT fiber, a PTT fiber, and combinations thereof, wherein the web is needle punched, hydroentangled, thermally bonded, and calendared.
A durable nonwoven fabric comprising a first web layer, a third web layer, and a second web layer disposed between the first web layer and the third web layer, wherein the web layers are first needle punched and hydroentangled, then at least one of thermally bonded and chemically bonded, and then at least one of calendared and hydroentangled.
A method for preparing a durable nonwoven fabric, the method comprising the following steps:
Dependencies are inferred from the claim text.